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Finding the Fourth Proportional to 2,960.70, 4,441.13 and 1,012.89

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Solution

The fourth proportional to 2,960.70, 4,441.13 and 1,012.89 is: 1,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.70 : 4,441.13 = 1,012.89 : x
  2. Step 2: Convert to fraction form
    2,960.70/4,441.13 = 1,012.89/x
  3. Step 3: Cross multiply
    2,960.70x = 4,441.13 × 1,012.89
  4. Step 4: Simplify right side
    2,960.70x = 4,498,371.10
  5. Step 5: Solve for x
    x = 4,498,371.10/2,960.70
  6. Step 6: Final answer
    x = 1,519.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.